campbell's healthy request soup lets you hear it... in your heart. [ basketball bouncing ] heart healthy. great taste. mmm... [ male announcer ] sounds good. it's amazing what soup can do. we're sitting on a bunch of shale gas. there's natural gas under my town. it's a game changer. ♪ ♪ it means cleaner, cheaper american-made energy. but we've got to be careful how we get it. design the wells to be safe. thousands of jobs. use the most advanced technology to protect our water. billions in the economy. at chevron, if we can't do it right, we won't do it at all. we've got to think long term. we've got to think long term. ♪ ♪ ai wei wei is an artist who is causing chinese government censors more than a few sleepless nights. rita braver with a portrait of an artist as a dissident unvowed. >> reporter: this may look like a bowl of pearls and this merely a collection of crabs. yet to artist ai wei wei they represent the idea that there is value not just in the group but also in each individual. whether in art or in life. a notion tha